HP StorageWorks MSA2012i HP StorageWorks 2000 Modular Smart Array Reference Gu - Page 66

5. Set Minimum Size Of Virtual disk to the amount of available space to use for all volumes on the new virtual disk. This value is rounded to the nearest Gbyte and is shown to the right of this field as Targeted Virtual Disk Size. Because SMU allocates entire drives to virtual disks, the resulting virtual disk is typically larger than the requested size; capacity beyond that allocated to volumes is designated as free space. For example, assume you are creating a RAID-0 virtual disk in a system with only 500-Gbyte drives. Setting this value to 600 Gbyte results in a virtual disk that is approximately 1000 Gbyte, including approximately 400 Gbyte of free space. 6. Set Number Of Volumes to the number of individual volumes the virtual disk is to be divided into. You can create a virtual disk that has no volumes (the default), one volume, or multiple volumes. If you choose to create no volumes, you can later add standard volumes or volumes of other types. The Size Of Each Volume field shows the Targeted Virtual Disk Size divided by the number of volumes. Volumes created are approximately the size requested; they may be a few percent larger than the requested size. Unused capacity in the virtual disk is designated as free space. Note - If you have disk drives of different sizes, the calculations are based on the smaller drives. This can result in virtual disks that have larger actual size than you requested and space on the larger drives that will be unused. To avoid these problems, you can use Manual Virtual Disk Creation to select disk drives to include in a virtual disk. 7. Click Create New Virtual Disk. A new page shows the progress of virtual disk initialization. See "Virtual Disk Initialization" on page 70. 66 HP StorageWorks 2000 Family Modular Smart Array reference guide • August 2008